60 lines
2.4 KiB
C++
60 lines
2.4 KiB
C++
// This file is part of VSTGUI. It is subject to the license terms
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// in the LICENSE file found in the top-level directory of this
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// distribution and at http://github.com/steinbergmedia/vstgui/LICENSE
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#pragma once
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#include "cviewcontainer.h"
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#include "iviewlistener.h"
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#include "iscalefactorchangedlistener.h"
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#include "platform/iplatformviewlayer.h"
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namespace VSTGUI {
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//-----------------------------------------------------------------------------
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// CLayeredViewContainer Declaration
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//! @brief a view container which draws into a platform layer on top of a parent layer or the platform view
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//! @ingroup containerviews
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//! @ingroup new_in_4_2
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//! A CLayeredViewContainer creates a platform layer on top of a parent layer or the platform view of CFrame
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//! if available on that platform and draws into it, otherwise it acts exactly like a CViewContainer
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//-----------------------------------------------------------------------------
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class CLayeredViewContainer : public CViewContainer,
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public IPlatformViewLayerDelegate,
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public ViewContainerListenerAdapter,
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public IScaleFactorChangedListener
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{
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public:
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explicit CLayeredViewContainer (const CRect& r = CRect (0, 0, 0, 0));
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~CLayeredViewContainer () noexcept override = default;
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IPlatformViewLayer* getPlatformLayer () const { return layer; }
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void setZIndex (uint32_t zIndex);
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uint32_t getZIndex () const { return zIndex; }
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bool removed (CView* parent) override;
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bool attached (CView* parent) override;
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void invalid () override;
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void invalidRect (const CRect& rect) override;
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void parentSizeChanged () override;
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void setViewSize (const CRect& rect, bool invalid = true) override;
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void setAlphaValue (float alpha) override;
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//-----------------------------------------------------------------------------
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protected:
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void drawRect (CDrawContext* pContext, const CRect& updateRect) override;
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void drawViewLayerRects (const PlatformGraphicsDeviceContextPtr& context, double scaleFactor,
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const std::vector<CRect>& rects) override;
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void viewContainerTransformChanged (CViewContainer* container) override;
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void onScaleFactorChanged (CFrame* frame, double newScaleFactor) override;
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void updateLayerSize ();
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CGraphicsTransform getDrawTransform () const;
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void registerListeners (bool state);
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SharedPointer<IPlatformViewLayer> layer;
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CLayeredViewContainer* parentLayerView {nullptr};
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uint32_t zIndex {0};
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};
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} // VSTGUI
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